You use on iPhonech VPN connection? Then the following lines may annoy and disappoint you. Renowned security expert Michael Horowitz claims that VPN on iPhonech is not working as it should and what's more – that about this matter Apple He knows very well, but he has no effort or desire to do anything about it. ProProblems with VPN functionality have therefore been a problem for several years.
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Horowitz specifically writes on his blog that at first VPN applications work exactly as you would expect - that is, they create a private "tunnel" through which all Internet activity flows and users are therefore invisible. Over time, however, this tunnel is said to become partially permeable, thereby losing the user's anonymity. Although the cracks as such are relatively small and do not cause, for example, browsing of a certain website accessible only from a certain location to be interrupted, for which VPNs are widely used, however, by the fact that certain data from the user's Internet activity leaves, his privacy is threatened - or rather, it is not as he thinks.
Since Horowitz's claim is based only on his experiments, it is very difficult to say whether it is based on truth or not. However, if this is indeed the case and the VPN does not work on iPhonech as generally expected by users, it could be for Apple a big problem in the future. However, he has not yet commented on the whole matter and it is questionable whether he will comment at all. After all, if that is the case, the statement would de facto reveal the long-secret cards.